TY - JOUR
T1 - Convective boundary layer depth estimation from S-band dual-polarization radar
AU - Banghoff, John R.
AU - Stensrud, David J.
AU - Kumjian, Matthew R.
N1 - Publisher Copyright:
© 2018 American Meteorological Society.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - This study investigates Bragg scatter signatures in dual-polarization radar observations, which are defined by low differential reflectivity (ZDR) values, as a proxy for convective boundary layer (CBL) depth. Using data from the WSR-88D in Twin Lakes, Oklahoma (KTLX), local minima in quasi-vertical profiles of (ZDR) are found to provide a reasonable estimate of CBL depth when compared with depth estimates from upper-air soundings from Norman, Oklahoma (KOUN), during 2014. The 243 (ZDR) Bragg scatter and upper-air sounding CBL depth estimates have a correlation of 0.90 and an RMSE of 254 m. Using Bragg scatter as a proxy for CBL depth was expanded to other seasons and locations-performing well in Wilmington, Ohio; Fairbanks, Alaska; Tucson, Arizona; Minneapolis, Minnesota; Albany, New York; Portland, Oregon; and Tampa, Florida-showing its potential usefulness in monitoring CBL depth throughout the year in a variety of geographic locations and meteorological conditions.
AB - This study investigates Bragg scatter signatures in dual-polarization radar observations, which are defined by low differential reflectivity (ZDR) values, as a proxy for convective boundary layer (CBL) depth. Using data from the WSR-88D in Twin Lakes, Oklahoma (KTLX), local minima in quasi-vertical profiles of (ZDR) are found to provide a reasonable estimate of CBL depth when compared with depth estimates from upper-air soundings from Norman, Oklahoma (KOUN), during 2014. The 243 (ZDR) Bragg scatter and upper-air sounding CBL depth estimates have a correlation of 0.90 and an RMSE of 254 m. Using Bragg scatter as a proxy for CBL depth was expanded to other seasons and locations-performing well in Wilmington, Ohio; Fairbanks, Alaska; Tucson, Arizona; Minneapolis, Minnesota; Albany, New York; Portland, Oregon; and Tampa, Florida-showing its potential usefulness in monitoring CBL depth throughout the year in a variety of geographic locations and meteorological conditions.
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U2 - 10.1175/JTECH-D-17-0210.1
DO - 10.1175/JTECH-D-17-0210.1
M3 - Article
AN - SCOPUS:85052535387
SN - 0739-0572
VL - 35
SP - 1723
EP - 1733
JO - Journal of Atmospheric and Oceanic Technology
JF - Journal of Atmospheric and Oceanic Technology
IS - 8
ER -